| Age | Commit message (Collapse) | Author |
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into staging
testing and plugin updates for 7.2:
- cleanup win32/64 docker files
- update test-mingw test
- add flex/bison to debian-all-test
- handle --enable-static/--disable-pie in config
- extend timeouts on x86_64 avocado tests
- add flex/bison to debian-hexagon-cross
- use regular semihosting for nios2 check-tcg
- fix obscure linker error to nios2 softmmu tests
- various windows portability fixes for tests
- clean-up of MAINTAINERS
- use -machine none when appropriate in avocado
- make raspi2_initrd test detect shutdown
- disable sh4 rd2 tests on gitlab
- re-enable threadcount/linux-test for sh4
- clean-up s390x handling of "ex" instruction
- better handle new CPUs in execlog plugin
- pass CONFIG_DEBUG_TCG to plugin builds
- try and avoid races in test-io-channel-command
- speed up ssh key checking for tests/vm
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# 76Aw1KHsE03SyAPvH4bE7eGkIwhJOQ==
# =6hXE
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 01 Nov 2022 09:49:39 EDT
# gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* tag 'pull-testing-for-7.2-011122-3' of https://github.com/stsquad/qemu: (31 commits)
tests/vm: use -o IdentitiesOnly=yes for ssh
tests/unit: cleanups for test-io-channel-command
contrib/plugins: protect execlog's last_exec expansion
contrib/plugins: enable debug on CONFIG_DEBUG_TCG
tests/tcg: include CONFIG_PLUGIN in config-host.mak
target/s390x: fake instruction loading when handling 'ex'
target/s390x: don't probe next pc for EXecuted insns
target/s390x: don't use ld_code2 to probe next pc
tests/tcg: re-enable threadcount for sh4
tests/tcg: re-enable linux-test for sh4
tests/avocado: disable sh4 rd2 tests on Gitlab
tests/avocado: raspi2_initrd: Wait for guest shutdown message before stopping
tests/avocado: set -machine none for userfwd and vnc tests
MAINTAINERS: fix-up for check-tcg Makefile changes
MAINTAINERS: add features_to_c.sh to gdbstub files
MAINTAINERS: add entries for the key build bits
hw/usb: dev-mtp: Use g_mkdir()
block/vvfat: Unify the mkdir() call
tcg: Avoid using hardcoded /tmp
semihosting/arm-compat-semi: Avoid using hardcoded /tmp
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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The value passed is always true, and if the target's
synchronize_from_tb hook is non-trivial, not exiting
may be erroneous.
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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The s390x EXecute instruction is a bit weird as we synthesis the
executed instruction from what we have stored in memory. This missed
the plugin instrumentation.
Work around this with a special helper to inform the rest of the
translator about the instruction so things stay consistent.
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221027183637.2772968-26-alex.bennee@linaro.org>
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We have finished the TB anyway so we can shortcut the other tests by
checking dc->ex_value first.
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20221027183637.2772968-25-alex.bennee@linaro.org>
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This isn't an translator picking up an instruction so we shouldn't use
the translator_lduw function which has side effects for plugins.
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20221027183637.2772968-24-alex.bennee@linaro.org>
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The element size is encoded in the M3 field, not in the M4
field.
Fixes: be6324c6b734 ("s390x/tcg: Implement VECTOR ISOLATE STRING")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1248
Message-Id: <20221012182755.1014853-3-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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When PAGE_WRITE_INV is set when calling tlb_set_page,
we immediately set TLB_INVALID_MASK in order to force
tlb_fill to be called on the next lookup. Here in
probe_access_internal, we have just called tlb_fill
and eliminated true misses, thus the lookup must be valid.
This allows us to remove a warning comment from s390x.
There doesn't seem to be a reason to change the code though.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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In order for hosts running inside of TCG to initialize the kernel's
random number generator, we should support the PRNO_TRNG instruction,
backed in the usual way with the qemu_guest_getrandom helper. This is
confirmed working on Linux 5.19.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Message-Id: <20220921100729.2942008-2-Jason@zx2c4.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[thuth: turn prno-trng off in avocado test to avoid breaking it]
Signed-off-by: Thomas Huth <thuth@redhat.com>
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In order to fully support MSA_EXT_5, we have to support the SHA-512
special instructions. So implement those.
The implementation began as something TweetNacl-like, and then was
adjusted to be useful here. It's not very beautiful, but it is quite
short and compact, which is what we're going for.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
[ restructure, add missing exception, add comments, fixup CPU model ]
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220922153820.221811-1-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Fix the opcode for Load and Zero Rightmost Byte (32).
Fixes: c2a5c1d718ea ("target/s390x: Implement load-and-zero-rightmost-byte insns")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: qemu-stable@nongnu.org
Message-Id: <20220914105750.767697-1-borntraeger@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Right now translator stops right *after* the end of a page, which
breaks reporting of fault locations when the last instruction of a
multi-insn translation block crosses a page boundary.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220817150506.592862-3-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Pass these along to translator_loop -- pc may be used instead
of tb->pc, and host_pc is currently unused. Adjust all targets
at one time.
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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I2 is 16 bits, not 32.
Found by running valgrind's none/tests/s390x/traps.
Fixes: 1c2687518235 ("target-s390: Implement COMPARE AND TRAP")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220817161529.597414-1-iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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vfmin_res() / vfmax_res() are trying to check whether a and b are both
zeroes, but in reality they check that they are the same kind of zero.
This causes incorrect results when comparing positive and negative
zeroes.
Fixes: da4807527f3b ("s390x/tcg: Implement VECTOR FP (MAXIMUM|MINIMUM)")
Co-developed-by: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220713182612.3780050-2-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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When EXECUTE sets ex_value to interrupt the constructed instruction,
we implicitly disable interrupts so that the value is not corrupted.
Exit to the main loop after execution, so that we re-evaluate any
pending interrupts.
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220702060228.420454-5-richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Replace this with a flag: exit_to_mainloop.
We can now control the exit for each of DISAS_TOO_MANY,
DISAS_PC_UPDATED, and DISAS_PC_CC_UPDATED, and fold in
the check for PER.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220702060228.420454-4-richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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There is nothing to distinguish this from DISAS_TOO_MANY.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220702060228.420454-3-richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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There is nothing to distinguish this from DISAS_NORETURN.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220702060228.420454-2-richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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According to the architecture, SET PREFIX must try to access the new
prefix area and recognize an addressing exception if the area is not
accessible.
For qemu this check prevents a crash in cpu_map_lowcore after an
inaccessible prefix area has been set.
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220630094340.3646279-1-scgl@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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One less P needed.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20220523115123.150340-1-dgilbert@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: David Miller <dmiller423@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220428094708.84835-12-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: David Miller <dmiller423@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220428094708.84835-11-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: David Miller <dmiller423@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220428094708.84835-10-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: David Miller <dmiller423@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220428094708.84835-9-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: David Miller <dmiller423@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220428094708.84835-8-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: David Miller <dmiller423@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220428094708.84835-7-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: David Miller <dmiller423@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220428094708.84835-6-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Fixes: 0e0a5b49ad58 ("s390x/tcg: Implement VECTOR STORE WITH LENGTH")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Miller <dmiller423@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220428094708.84835-2-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Coverity rightly reports that 0xff << pos can overflow.
This would affect the ICMH instruction.
Fixes: Coverity CID 1487161
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220401193659.332079-1-richard.henderson@linaro.org>
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G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in
glib-compat.
Note that this attribute must be placed before the function declaration
(bringing a bit of consistency in qemu codebase usage).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com>
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We have fetched and locked the logfile in translator_loop.
Pass the filepointer down to the disas_log hook so that it
need not be fetched and locked again.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-13-richard.henderson@linaro.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Replace a config-time define with a compile time condition
define (compatible with clang and gcc) that must be declared prior to
its usage. This avoids having a global configure time define, but also
prevents from bad usage, if the config header wasn't included before.
This can help to make some code independent from qemu too.
gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[ For the s390x parts I'm involved in ]
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reported by Paul Eggert in
https://lists.gnu.org/archive/html/bug-gnulib/2021-09/msg00050.html
This program currently prints different results when run with TCG instead
of running on real s390x hardware:
#include <stdio.h>
int overflow_32 (int x, int y)
{
int sum;
return __builtin_sub_overflow (x, y, &sum);
}
int overflow_64 (long long x, long long y)
{
long sum;
return __builtin_sub_overflow (x, y, &sum);
}
int a1 = 0;
int b1 = -2147483648;
long long a2 = 0L;
long long b2 = -9223372036854775808L;
int main ()
{
{
int a = a1;
int b = b1;
printf ("a = 0x%x, b = 0x%x\n", a, b);
printf ("no_overflow = %d\n", ! overflow_32 (a, b));
}
{
long long a = a2;
long long b = b2;
printf ("a = 0x%llx, b = 0x%llx\n", a, b);
printf ("no_overflow = %d\n", ! overflow_64 (a, b));
}
}
Signed-off-by: Bruno Haible <bruno@clisp.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/618
Message-Id: <20220323162621.139313-3-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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This program currently prints different results when run with TCG instead
of running on real s390x hardware:
#include <stdio.h>
int overflow_32 (int x, int y)
{
int sum;
return ! __builtin_add_overflow (x, y, &sum);
}
int overflow_64 (long long x, long long y)
{
long sum;
return ! __builtin_add_overflow (x, y, &sum);
}
int a1 = -2147483648;
int b1 = -2147483648;
long long a2 = -9223372036854775808L;
long long b2 = -9223372036854775808L;
int main ()
{
{
int a = a1;
int b = b1;
printf ("a = 0x%x, b = 0x%x\n", a, b);
printf ("no_overflow = %d\n", overflow_32 (a, b));
}
{
long long a = a2;
long long b = b2;
printf ("a = 0x%llx, b = 0x%llx\n", a, b);
printf ("no_overflow = %d\n", overflow_64 (a, b));
}
}
Signed-off-by: Bruno Haible <bruno@clisp.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/616
Message-Id: <20220323162621.139313-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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When RI2 is 0x80000000, qemu enters an infinite loop instead of jumping
backwards. Fix by adding a missing cast, like in in2_ri2().
Fixes: 7233f2ed1717 ("target-s390: Convert BRANCH ON CONDITION")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220314104232.675863-3-iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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When RI2 is 0x80000000, qemu enters an infinite loop instead of jumping
backwards. Fix by adding a missing cast, like in in2_ri2().
Fixes: 8ac33cdb8bfb ("Convert BRANCH AND SAVE")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220314104232.675863-2-iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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s390x
implements:
AND WITH COMPLEMENT (NCRK, NCGRK)
NAND (NNRK, NNGRK)
NOT EXCLUSIVE OR (NXRK, NXGRK)
NOR (NORK, NOGRK)
OR WITH COMPLEMENT (OCRK, OCGRK)
SELECT (SELR, SELGR)
SELECT HIGH (SELFHR)
MOVE RIGHT TO LEFT (MVCRL)
POPULATION COUNT (POPCNT)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/737
Signed-off-by: David Miller <dmiller423@gmail.com>
Message-Id: <20220223223117.66660-2-dmiller423@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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We previously loaded into in1, but in1 is not filled during
disassembly and hence always zero. This leads to an assertion failure:
qemu-system-s390x: /home/nrb/qemu/include/tcg/tcg.h:654: temp_idx:
Assertion `n >= 0 && n < tcg_ctx->nb_temps' failed.`
Instead, use in2_la2_m64a to load from storage into in2 and pass that to
the helper, which matches what we already do for SCKC.
This fixes the SCK test I sent here under TCG:
<https://www.spinics.net/lists/kvm/msg265169.html>
Fixes: 9dc67537 ("s390x/tcg: implement SET CLOCK ")
Suggested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Message-Id: <20220126084201.774457-1-nrb@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Many files use "qemu/log.h" declarations but neglect to include
it (they inherit it via "exec/exec-all.h"). "exec/exec-all.h" is
a core component and shouldn't be used that way. Move the
"qemu/log.h" inclusion locally to each unit requiring it.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220207082756.82600-10-f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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According to PoP, both 32- and 64-bit shifts use lowest 6 address
bits. The current code special-cases 32-bit shifts to use only 5 bits,
which is not correct. For example, shifting by 32 bits currently
preserves the initial value, however, it's supposed zero it out
instead.
Fix by merging sh32 and sh64 and adapting CC calculation to shift
values greater than 31.
Fixes: cbe24bfa91d2 ("target-s390: Convert SHIFT, ROTATE SINGLE")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220112165016.226996-5-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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An overflow occurs for SLAG when at least one shifted bit is not equal
to sign bit. Therefore, we need to check that `shift + 1` bits are
neither all 0s nor all 1s. The current code checks only `shift` bits,
missing some overflows.
Fixes: cbe24bfa91d2 ("target-s390: Convert SHIFT, ROTATE SINGLE")
Co-developed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220112165016.226996-4-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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SRDA uses r1_D32 for binding the first operand and s64 for setting CC.
cout_s64() relies on o->out being the shift result, however,
wout_r1_D32() clobbers it.
Fix by using a temporary.
Fixes: a79ba3398a0a ("target-s390: Convert SHIFT DOUBLE")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220112165016.226996-3-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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SLDA operates on 64-bit values, so its sign bit index should be 63,
not 31.
Fixes: a79ba3398a0a ("target-s390: Convert SHIFT DOUBLE")
Reported-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220112165016.226996-2-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Renaming defines for quad in their various forms so that their signedness is
now explicit.
Done using git grep as suggested by Philippe, with a bit of hand edition to
keep assignments aligned.
Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220106210108.138226-2-frederic.petrot@univ-grenoble-alpes.fr
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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For s390x, the only unaligned accesses that are signaled are atomic,
and we don't actually want to raise SIGBUS for those, but instead
raise a SPECIFICATION error, which the kernel will report as SIGILL.
Split out a do_unaligned_access function to share between the user-only
s390x_cpu_record_sigbus and the sysemu s390x_do_unaligned_access.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Move the masking of the address from cpu_loop into
s390_cpu_record_sigsegv -- this is governed by hw, not linux.
This does mean we have to raise our own exception, rather
than return to the fallback.
Use maperr to choose between PGM_PROTECTION and PGM_ADDRESSING.
Use the appropriate si_code for each in cpu_loop.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Not sure why the user-only code wasn't rewritten to use
probe_access_flags at the same time that the sysemu code
was converted. For the purpose of user-only, this is an
exact replacement.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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GDB single-stepping is now handled generically.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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